Island



UNTT STATES PATENT rrron,

ROBERT D. OOGGESHALL, OF NEXVPORT, RHODE ISLAND, ASSIGNOR OFTHREE-FOURTHS TO J. D. JOHNSTON, OF SAME PLACE.

DOOR KNOCKER AND ALA-RM,

SPECIFICATION forming part of Letters Patent No. 602,573, dated April19, 1898.

Application filed August 27, 1897.

To all whom it may concern:

BeitknownthatLRoBERrD.CoooEsHALL, a citizen of the United States,residing at Newport, in the county of Newport and State of Rhode Island,have invented a certain new and useful Improvement in Door Knockers andAlarms, of which the following is a specification.

My invention relates to a new and useful improvement in door-alarms, andespecially that class known as knockers, and has for its object toprovide a simple, neat, and effective device by means of which theoccupants of a house may be made aware of the presence of a person fromthe outside of the door desiring to gain admission and which will permitthe ringing of a bell or gong upon the inside of the door by the usualmovement of the knocker; and a further object of my invention is torender the outward appearance of the knocker attractive and unique.

With these ends in view this invention consists in the details ofconstruction and combination of elements hereinafter set forth, and thenspecifically designated by the claim.

In order that those skilled in the art to which this inventionappertains may understand how to make and use the same, its constructionand operation will now be described in detail, referring to theaccompanying drawings, forming a part of this specification, in which-Figure l is a perspective of the knocker before attachment to a door;and Fig. 2, a section of a portion of a door, showing the knockersecured upon the outside thereof and the gong upon the inside with theintervening means for sounding said gong.

In carrying out my invention as here embodied, A represents thestationary member of the knocker, which is of horseshoe shape andadapted to be secured to the outer surface of the door by the passage ofsuitable screws through the countersunk holes B, and to the heels of thehorseshoe at O is pivoted the movable member D, which latter is forkedat its upper end for this purpose, while its lower Serial No. 649,682.(No model.)

end terminates in a striker E, which is adapted to come in violentcontact with the boss F, projecting from the outer surface of thehorseshoe. Secured to or formed with the lower end of the movable memberis a knob G, by means of which said member may be manipulated for thepurpose of alarming the occupants of the house.

As a further means for alarming the occupants I provide a bell or gongH, which is placed upon the inner surface of the door, and to ring thegong I secure a spring strikerarm I to an arm M of the bell-support Nand pivot the striker-pin J to the lower end of the striker. This pin Jprojects through the door and fits against the knocker, holding itnormally away from the stationary member, so that it terminates in thefield of action of the knocker D, so that when this movable member orstriker is operated the gong will be sounded, as will be readilyunderstood. By this arrangement the necessity for unduly operating theknocker is obviated, since the gong being upon the inside of the doorwill be easily heard by the occupants of the house without the violentmovements of the knocker.

An alarm made in accordance with myimprovement is exceedingly simple inconstruction, and the method of operating the same is so obvious andwell known that any one will intuitively manipulate the'same properly,while the design, that portion exposed upon the outside of the doorrepresenting a horseshoe, will be exoeedingly attractive and unique,since the same is the emblem of good luck.

Having thus fully described my invention, what I claim as new and usefulis A door knocker and alarm consisting of a stationary member secured toa door, a knocker pivoted to the stationary member, a bell, secured tothe inside of the door, an enlargement formed on the inner surface ofthe bell, an arm formed on the bell-support and extending to one sidethereof, a spring-striker secured to the arm and extending downward, thelower end thereof being enlarged to form a knob and terminating ashortdistance from I In testimony whereof I have hereunto afthe enlargementon the bell which it is adaptfixed my signature in the presence of twosubed to strike, and a striker-pin pivoted to the scribing witnesses.

striker and extending through the door fitting ROBERT D. COGGESHALL.against the knoeker and holding it normally Vitnesses:

away from the stationary member, as and for DARIUS BAKER,

the purpose described. W. 0. MILNE.

